Left and right arbitrary door opening structure of refrigerator

Abstract

The utility model relates to the technical field of household appliances, in particular to a left-right arbitrary door opening structure of a refrigerator. Comprising a box body, a door body and clutch hinges, the clutch hinges are arranged on the left side and the right side of the door body, a synchronous cross rod is arranged on the door body, and the two ends of the synchronous cross rod are matched with the clutch hinges on the left side and the right side of the door body respectively; the synchronous cross rod can drive the clutch hinge on any side of the door body to be rotationally connected to the box body, and meanwhile, the synchronous cross rod releases the clutch hinge on the other side of the door body to be separated from the box body; according to the refrigerator left-right arbitrary door opening structure, the synchronous cross rod forms a logic control component, any group of clutch hinges can be selected, one side of the door body is rotationally connected with the refrigerator body, the door body is opened from the other side, and therefore the refrigerator can be opened left and right freely, and the refrigerator left-right arbitrary door opening structure is flexible and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a refrigerator door structure with arbitrary left and right openings. Background Art

[0002] The main structure of household appliances such as refrigerators, microwave ovens, and ovens consists of a cabinet and doors. For example, a single-door refrigerator has a door that attaches to the cabinet opening via a hinge on one side. The door and cabinet are magnetically connected and sealed with a sealing strip for insulation. Existing single-door refrigerators have doors that can only be opened in one direction. In some environments, the door's opening direction can interfere with surrounding structures, affecting product sales.

[0003] Chinese patent CN105421920A discloses a door opening mechanism for a refrigerator and a refrigerator containing the same, wherein the refrigerator includes a door body and a box body, wherein the door body is arranged at the opening of the box body, and the door opening mechanism includes: a guide component for being arranged in the door body; a transverse axis for passing through the door body along the thickness direction of the door body, and an upper inclined groove and a lower inclined groove are symmetrically provided at one end of the transverse axis close to the box body, and is slidably arranged in the guide component along the thickness direction of the door body; an upper movable shaft is slidably arranged in the guide component along the height direction of the door body, and a first end of the upper movable shaft is sleeved with a first elastic component The cam is adapted to engage with the bottom of the box body and to engage with the bottom of the box body when the cam is engaged with the bottom of the box body.

[0004] In the above-mentioned prior art, when a user pulls the sliding door mechanism on the door body, the horizontal axis is subjected to outward tension, causing the inclined slot on the horizontal axis to disengage from the upper and lower movable shafts. The upper and lower movable shafts are then separated from the housing by the force of elastic components, allowing the door body to open from the pulling side. When the sliding door mechanisms on both sides of the door body are activated simultaneously, the entire door body can be removed from the housing. However, because the hinge structure formed by the movable shafts on both sides of the door body is independent of each other, the door body may accidentally fall due to improper operation, resulting in poor structural stability and safety.

[0005] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0006] The purpose of the utility model is to address the defects and shortcomings of the existing technology and provide a refrigerator door structure that is reasonable in structure, stable and reliable, and flexible in use and can be opened either left or right.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] The utility model describes a refrigerator door structure that can be opened either left or right, comprising a housing, a door body, and a clutch hinge. Clutch hinges are provided on both sides of the door body, and a synchronization cross bar is provided on the door body. The two ends of the synchronization cross bar are respectively paired with the clutch hinges on the left and right sides of the door body; the synchronization cross bar can drive the clutch hinge on either side of the door body to rotate and connect to the housing, and at the same time, the synchronization cross bar releases the clutch hinge on the other side of the door body to separate from the housing. The synchronization cross bar can move left and right on the door body. When the synchronization cross bar moves to one side of the door body, it can push the clutch hinge on that side to rotate and connect the door body to the housing. At the same time, the synchronization cross bar disables the clutch hinge on the other side, and the door body can be opened or closed from the other side. Through the action of the synchronization cross bar, the user can choose to open the door body from the left and right sides of the housing, thereby meeting the usage habits of different users.

[0009] According to the above scheme, the clutch hinge includes two clutch shafts, which are respectively slidably arranged at the upper and lower ends of the door body, and a reset spring is provided between the clutch shaft and the door body; the upper and lower ends of the box body are provided with hinge seats that match the clutch shafts, and the hinge seats are provided with a first lock hole; the synchronous cross bar can drive the two clutch shafts on one side of the door body to be synchronously inserted into the corresponding two first lock holes, so that one side of the door body is rotatably connected to the box body; at the same time, the synchronous cross bar releases the two clutch shafts on the other side of the door body, and the clutch shafts are disengaged from the corresponding first lock holes under the action of the reset spring. Specifically, a group of clutch hinges is provided on each of the left and right sides of the door body, and each group of clutch hinges includes two clutch shafts, that is, there are four clutch shafts on the left, right, upper and lower sides of the door body, and there are four hinge seats on the box body. The two clutch shafts on the same side are arranged along the same vertical axis, and the first lock holes on the two hinge seats on the same side are concentrically arranged.

[0010] Taking the example of opening the door from the right, the leftward movement of the synchronization crossbar can drive the two clutch shafts on the left side of the door to extend, so that the clutch shafts are inserted into the first lock holes on the corresponding hinge seats. At this time, the door can rotate on the box body around the two clutch shafts on the left side, thereby realizing the opening and closing of the door body on the box body. The process of opening the door from the left side is the same as above and will not be repeated here.

[0011] According to the above scheme, the clutch hinge also includes two synchronous links, which are installed on the door body so as to slide up and down through vertical guide rails; the first ends of the two synchronous links are respectively connected to the corresponding clutch shafts, and the second ends of the two synchronous links are respectively connected to the synchronous cross bars for transmission.

[0012] As mentioned above, the clutch shaft is arranged at the upper and lower ends of the door body, and the synchronous cross bar needs to synchronously drive the two clutch shafts to enable the door body and the box body to be rotationally connected. Therefore, the synchronous cross bar is arranged in the middle of the door body, and the distance between the clutch shaft and the synchronous cross bar is made up by the synchronous connecting rod. Furthermore, the vertical guide rail is used to install the synchronous connecting rod and control the movement trajectory of the synchronous connecting rod, thereby converting the lateral movement of the synchronous cross bar into the vertical movement of the synchronous connecting rod. Specifically, the synchronous cross bar moves toward one side of the door body, which can drive the two synchronous connecting rods on this side to move upward and downward, thereby driving the clutch shafts at the upper and lower ends of the door body to extend, and the clutch shaft is inserted into the first lock hole on the hinge seat to form a rotational connection. The synchronous connecting rod is used to convert the lateral movement of the synchronous cross bar into the vertical movement of the clutch shaft. The transmission between the synchronous cross bar and the synchronous connecting rod can be achieved by existing conventional methods, such as crank connecting rod, gear rack, etc.

[0013] According to the above scheme, it is preferred that a wedge-shaped end is provided on the second end of each of the two synchronous links, the synchronous cross bar can move left and right on the door body, and both ends of the synchronous cross bar are provided with a tapered head; when the synchronous cross bar moves toward one side of the door body, the tapered head at one end of the synchronous cross bar squeezes the corresponding two wedge-shaped ends, and the lateral movement of the synchronous cross bar is converted into the vertical movement of the synchronous link through the inclined surface, thereby pushing the two synchronous links on one side of the door body to slide up and down respectively; at the same time, the tapered head at the other end of the synchronous cross bar disengages from the corresponding two wedge-shaped ends, causing the two synchronous links on the other side of the door body to slide down and up respectively. It can be understood that the two synchronous links are arranged one above and one below, and at the same time, the two movement directions are opposite. Conversely, when the synchronous cross bar moves toward the other side of the door body, the wedge-shaped end loses the support of the tapered head, and the return spring drives the clutch shaft to retract the door body, thereby achieving the purpose of disconnecting the rotational connection between one side of the door body and the box body.

[0014] According to the above scheme, a transverse guide rail is provided on the door body, and the synchronous cross bar is installed on the door body through the transverse guide rail. Two gear plates are provided on the transverse guide rail, and the synchronous cross bar is provided with a limit plate. The limit plates can be snap-connected to the corresponding gear plates respectively. The transverse guide rail is used to install the synchronous cross bar, and the transverse guide rail can control the movement trajectory of the synchronous cross bar. It can be understood that the synchronous cross bar has two states, left and right, so as to drive the clutch hinge on the left or right side of the door body respectively. When the synchronous cross bar moves to either side, the limit plates are on both sides of the gear plate, and the gear plate is used to limit the synchronous cross bar to prevent it from uncontrolled displacement. Simply put, the cooperation of the gear plate and the limit plate enables the synchronous cross bar to have two gear modes on the left or right side, so as to respectively control the two sets of clutch hinges so that the door body and the box body are rotatably connected.

[0015] According to the above solution, two handles are provided on the door body, and a transmission structure is provided between the two handles and the synchronous cross bar. Generally speaking, the two handles are used to pull the door body to rotate around the clutch shaft on either side, so that the door body opens or closes the opening of the box body. Preferably, the handles can drive the synchronous cross bar to switch to the left and right states along the horizontal guide rail. Specifically, the left and right sides of the door body of the utility model are provided with two handles, and the two handles correspond to the left and right opening modes of the door body respectively. The user grabs and turns the corresponding handle, and the synchronous cross bar moves to the corresponding side through the transmission structure, thereby driving the clutch hinge on that side to rotate and connect to the box body, while the clutch hinge on the other side fails, so that the door body can be opened or closed by the handle.

[0016] Furthermore, in order to better meet the user's operating habits, the handle can be set horizontally (the box body is set vertically, and the door body rotates toward the human body or away from the human body). When the user holds the handle, he first presses the handle down to rotate it to a certain angle, drives the synchronous cross bar to move to either side, and then pulls the door body outward to open it.

[0017] According to the above scheme, the transmission structure includes a swing arm, to which the handle is fixedly connected. The first end of the swing arm is rotatably connected to the door body, and the other end of the swing arm is connected to the synchronization crossbar via a flexible head. The handle can drive the swing arm to rotate on the door body. The swing arm converts the handle's rotation into lateral displacement of the flexible head, thereby driving the synchronization crossbar to either side. It is understood that converting the handle's rotation into linear displacement can also use existing conventional structures.

[0018] According to the above solution, a set of self-locking components is provided at each of the upper and lower ends of the door body. The self-locking components include a guide sleeve and a sealing baffle. The guide sleeve is fixedly connected to the door body, and the clutch shaft can slide up and down through the guide sleeve. The sealing baffle is arranged on the end of the guide sleeve and is slidably connected to the door body. A self-locking spring is provided between the door body and the sealing baffle, and a second lock hole is provided on the sealing baffle. When the door body approaches the box body, the hinge seat can push the sealing baffle so that the second lock hole is concentric with the clutch shaft. When the door body moves away from the box body, the self-locking spring can push the sealing baffle so that the second lock hole is misaligned with the clutch shaft. The guide sleeve is used to install the clutch shaft, so that the clutch shaft can extend out of the door body (upper end face or lower end face) and be inserted into the corresponding first lock hole. When the synchronous cross bar drives the clutch hinge on one side to make the clutch shaft extend out of the door body, the clutch hinge on the other side fails to make the clutch shaft retract into the guide sleeve, and then the sealing baffle covers the port of the guide sleeve, locking the clutch shaft in the guide sleeve, forming a linkage lock with the synchronous cross bar.

[0019] Specifically, the sealing baffle is equipped with a hinged tab. A self-locking spring pushes the sealing baffle through the hinged tab, misaligning the second lock hole and the clutch shaft, thereby locking the clutch shaft within the guide sleeve. When the door approaches the housing, the hinge seat pushes the hinged tab, aligning the second lock hole on the sealing baffle with the clutch shaft, allowing the clutch shaft to pass through the second lock hole and extend out of the door. The sealing baffle and the aforementioned synchronization crossbar provide a double lock for the clutch hinge, preventing misoperation and preventing the door from closing properly.

[0020] The utility model provides a refrigerator door structure with arbitrary left and right opening. A synchronous cross bar constitutes a logic control component. Any group of clutch hinges can be selected to form a rotational connection between one side of the door body and the box body, so that the door body can be opened from the other side, thereby realizing that the refrigerator door can be opened at will on the left and right, and is flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the box body and clutch hinge structure after the door body of the utility model is hidden;

[0023] Figure 3 This is a schematic diagram of the linkage between the synchronous crossbar and two sets of clutch hinges of the utility model;

[0024] Figure 4 This is a schematic diagram of the overall front view structure of the utility model after the door body is hidden;

[0025] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 6 It is a schematic diagram of the matching structure of the self-locking component and the hinge seat of the utility model.

[0027] In the picture:

[0028] 1. Box body; 2. Door body; 3. Synchronous cross bar; 4. Guide sleeve; 11. Hinge seat; 12. First lock hole; 21. Clutch shaft; 22. Return spring; 23. Synchronous connecting rod; 24. Vertical guide rail; 25. Wedge-shaped end; 26. Horizontal guide rail; 27. Handle; 28. Swing arm; 31. Conical head; 32. Shift plate; 33. Limit plate; 41. Sealing baffle; 42. Self-locking spring; 43. Second lock hole; 44. Folding plate. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model is described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-6As shown, the utility model discloses a refrigerator door structure with left and right opening options, comprising a housing 1, a door 2, and a clutch hinge. Clutch hinges are provided on both sides of the door 2. A synchronization crossbar 3 is provided on the door 2, with the ends of the synchronization crossbar 3 being paired with the clutch hinges on the left and right sides of the door 2. The synchronization crossbar 3 can drive the clutch hinge on either side of the door 2 to rotate and connect to the housing 1. Simultaneously, the synchronization crossbar 3 releases the clutch hinge on the other side of the door 2 to separate from the housing 1. The synchronization crossbar 3 can move left and right on the door 2. When the synchronization crossbar 3 moves toward one side of the door 2, it pushes the clutch hinge on that side to rotate and connect the door 2 to the housing 1. Simultaneously, the synchronization crossbar 3 disables the clutch hinge on the other side, allowing the door 2 to be opened or closed from the other side. The movement of the synchronization crossbar 3 allows the user to choose to open the door 2 from either side of the housing 1, thereby satisfying the usage habits of different users.

[0031] The clutch hinge includes two clutch shafts 21, which are respectively slidably arranged at the upper and lower ends of the door body 2, and a return spring 22 is provided between the clutch shafts 21 and the door body 2; the upper and lower ends of the box body 1 are both provided with hinge seats 11 that match the clutch shafts 21, and the hinge seats 11 are provided with first lock holes 12; the synchronous cross bar 3 can drive the two clutch shafts 21 on one side of the door body 2 to synchronously insert into the corresponding two first lock holes 12, thereby making one side of the door body 2 rotatably connected to the box body 1; at the same time, the synchronous cross bar 3 releases the two clutch shafts 21 on the other side of the door body 2, and the clutch shafts 21 are disengaged from the corresponding first lock holes 12 under the action of the return spring 22. Specifically, a group of clutch hinges is provided on each of the left and right sides of the door body 2, and each group of clutch hinges includes two clutch shafts 21, that is, there are four clutch shafts 21 on the left, right, upper and lower sides of the door body 2, and there are four hinge seats 11 on the box body 1. The two clutch shafts 21 on the same side are arranged along the same vertical axis, and the first locking holes 12 on the two hinge seats 11 on the same side are concentrically arranged.

[0032] Taking the right side opening of the door body 2 as an example, the leftward movement of the synchronization cross bar 3 can drive the two clutch shafts 21 on the left side of the door body 2 to extend, so that the clutch shafts 21 are inserted into the corresponding first lock holes 12 on the hinge seat 11. At this time, the door body 2 can rotate on the box body 1 around the two clutch shafts 21 on the left side, thereby realizing the opening and closing of the door body 2 on the box body 1. The process of opening the door body 2 from the left side is the same as above and will not be repeated here.

[0033] The clutch hinge also includes two synchronous links 23, which are slidably mounted on the door body 2 through vertical guide rails 24; the first ends of the two synchronous links 23 are respectively connected to the corresponding clutch shafts 21, and the second ends of the two synchronous links 23 are respectively connected to the synchronous cross bar 3.

[0034] As mentioned above, the clutch shaft 21 is set at the upper and lower ends of the door body 2. The synchronization cross bar 3 needs to synchronously drive the two clutch shafts 21 to enable the door body 2 to be rotationally connected to the box body 1. Therefore, the synchronization cross bar 3 is set in the middle of the door body 2, and the distance between the clutch shaft 21 and the synchronization cross bar 3 is made up by the synchronization link 23. Furthermore, the vertical guide rail 24 is used to install the synchronization link 23 and control the movement trajectory of the synchronization link 23, thereby converting the lateral movement of the synchronization cross bar 3 into the vertical movement of the synchronization link 23. Specifically, the movement of the synchronization cross bar 3 toward one side of the door body 2 can drive the two synchronization links 23 on this side to move upward and downward, thereby driving the clutch shafts 21 at the upper and lower ends of the door body 2 to extend, and the clutch shaft 21 is inserted into the first lock hole 12 on the hinge seat 11 to form a rotational connection. The synchronization link 23 is used to convert the lateral movement of the synchronization cross bar 3 into the vertical movement of the clutch shaft 21. The transmission between the synchronization cross bar 3 and the synchronization link 23 can be achieved by using existing conventional methods, such as a crank connecting rod, gear rack, etc.

[0035] Preferably, the second ends of the two synchronization links 23 are each provided with a wedge-shaped end 25, the synchronization cross bar 3 can move left and right on the door body 2, and both ends of the synchronization cross bar 3 are provided with a tapered head 31; when the synchronization cross bar 3 moves toward one side of the door body 2, the tapered head 31 at one end of the synchronization cross bar 3 squeezes the corresponding two wedge-shaped ends 25, and the lateral movement of the synchronization cross bar 3 is converted into vertical movement of the synchronization link 23 through the inclined surface, thereby pushing the two synchronization links 23 on one side of the door body 2 to slide upward and downward respectively; at the same time, the tapered head 31 at the other end of the synchronization cross bar 3 disengages from the corresponding two wedge-shaped ends 25, causing the two synchronization links 23 on the other side of the door body 2 to slide downward and upward respectively. It is understandable that the two synchronization links 23 are arranged one above and one below, and at the same time, they move in opposite directions. On the contrary, the synchronous cross bar 3 moves to the other side of the door body 2, the wedge-shaped end 25 loses the support of the conical head 31, and the return spring 22 drives the clutch shaft 21 to retract the door body 2, thereby disconnecting the rotation connection between one side of the door body 2 and the box body 1.

[0036] The door body 2 is provided with a transverse guide rail 26, and the synchronous cross bar 3 is installed on the door body 2 through the transverse guide rail 26. Two gear plates 32 are provided on the transverse guide rail 26, and a limit plate 33 is provided on the synchronous cross bar 3. The limit plates 33 can be snap-connected to the corresponding gear plates 32 respectively. The transverse guide rail 26 is used to install the synchronous cross bar 3, and the transverse guide rail 26 can control the movement trajectory of the synchronous cross bar 3. It can be understood that the synchronous cross bar 3 has two states, left and right, thereby driving the clutch hinge on the left or right side of the door body 2 respectively. When the synchronous cross bar 3 moves to either side, the limit plates 33 are on both sides of the gear plate 32, and the gear plate 32 is used to limit the synchronous cross bar 3 to prevent its uncontrolled displacement. In simple terms, the cooperation of the gear plate 32 and the limit plate 33 enables the synchronous cross bar 3 to have two gear modes, left or right, to respectively control the two sets of clutch hinges so that the door body 2 is rotatably connected to the box body 1.

[0037] The door body 2 is provided with two handles 27, and a transmission structure is provided between the two handles 27 and the synchronous cross bar 3. Generally speaking, the two handles 27 are used to pull the door body 2 to rotate around the clutch shaft 21 on either side, so that the door body 2 opens or closes the opening of the box body 1. Preferably, the handles 27 can drive the synchronous cross bar 3 to switch to the left and right states along the horizontal guide rail 26. Specifically, the door body 2 of the present invention is provided with two handles 27 on the left and right sides, and the two handles 27 correspond to the left and right opening modes of the door body 2 respectively. The user grabs and turns the corresponding handle 27, and the synchronous cross bar 3 is moved to the corresponding side through the transmission structure, thereby driving the clutch hinge on this side to rotate and connect to the box body 1, while the clutch hinge on the other side fails, so that the door body 2 can be opened or closed by the handle 27.

[0038] Furthermore, in order to better meet the user's operating habits, the handle 27 can be set horizontally (the box body 1 is set vertically, and the door body 2 is rotated toward the human body or away from the human body). When the user holds the handle 27, he first presses the handle 27 downward to rotate it to a certain angle, drives the synchronous cross bar 3 to move to either side, and then pulls the door body 2 outward to open it.

[0039] The transmission structure includes a swing arm 28, to which a handle 27 is fixedly connected. The first end of the swing arm 28 is rotatably connected to the door body 2, and the other end of the swing arm 28 is connected to the synchronization crossbar 3 via a flexible joint. The handle 27 can drive the swing arm 28 to rotate on the door body 2. The swing arm 28 converts the rotation of the handle 27 into lateral displacement of the flexible joint, thereby driving the synchronization crossbar 3 to move to either side. It is understood that the conversion of the rotation of the handle 27 into linear displacement can also use existing conventional structures.

[0040] The door body 2 is provided with a set of self-locking components at each of its upper and lower ends. The self-locking components include a guide sleeve 4 and a sealing baffle 41. The guide sleeve 4 is fixedly connected to the door body 2, and the clutch shaft 21 is slidably inserted into the guide sleeve 4. The sealing baffle 41 is provided on the end of the guide sleeve 4 and is slidably connected to the door body 2. A self-locking spring 42 is provided between the door body 2 and the sealing baffle 41, and a second lock hole 43 is provided on the sealing baffle 41. When the door body 2 approaches the box body 1, the hinge seat 11 can push the sealing baffle 41 so that the second lock hole 43 is concentric with the clutch shaft 21. When the door body 2 moves away from the box body 1, the self-locking spring 42 can push the sealing baffle 41 so that the second lock hole 43 is misaligned with the clutch shaft 21. The guide sleeve 4 is used to install the clutch shaft 21, so that the clutch shaft 21 can extend out of the door body 2 (upper end face or lower end face) and be inserted into the corresponding first lock hole 12. When the synchronous cross bar 3 drives the clutch hinge on one side to make the clutch shaft 21 extend out of the door body 2, the clutch hinge on the other side fails to make the clutch shaft 21 retract into the guide sleeve 4, and then the sealing baffle 41 covers the port of the guide sleeve 4, locking the clutch shaft 21 in the guide sleeve 4, forming a linkage lock with the synchronous cross bar 3.

[0041] Specifically, the sealing baffle 41 is provided with a hinged piece 44. A self-locking spring 42 pushes the sealing baffle 41 through the hinged piece 44, causing the second locking hole 43 to be misaligned with the clutch shaft 21, thereby locking the clutch shaft 21 within the guide sleeve 4. When the door 2 approaches the housing 1, the hinge seat 11 pushes the hinged piece 44, causing the second locking hole 43 in the sealing baffle 41 to be concentric with the clutch shaft 21, allowing the clutch shaft 21 to pass through the second locking hole 43 and extend out of the door 2. The sealing baffle 41 and the aforementioned synchronization crossbar 3 provide a double lock for the clutch hinge, preventing misoperation and preventing the door 2 from closing properly.

[0042] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A refrigerator door structure with left and right arbitrary opening, comprising a box body (1), a door body (2) and a clutch hinge, characterized in that: The door body (2) is provided with clutch hinges on both the left and right sides, and a synchronization cross bar (3) is provided on the door body (2), and the two ends of the synchronization cross bar (3) are respectively matched with the clutch hinges on the left and right sides of the door body (2); The synchronous cross bar (3) can drive the clutch hinge on either side of the door body (2) to rotate and connect to the box body (1); at the same time, the synchronous cross bar (3) releases the clutch hinge on the other side of the door body (2) to separate from the box body (1).

2. The refrigerator door opening structure according to claim 1, characterized in that: The clutch hinge comprises two clutch shafts (21), which are respectively slidably arranged at the upper and lower ends of the door body (2), and a return spring (22) is provided between the clutch shaft (21) and the door body (2); the upper and lower ends of the box body (1) are both provided with hinge seats (11) matched with the clutch shafts (21), and the hinge seats (11) are provided with first lock holes (12); the synchronous cross bar (3) can drive the two clutch shafts (21) on one side of the door body (2) to be synchronously inserted into the corresponding two first lock holes (12), so that one side of the door body (2) is rotatably connected to the box body (1); at the same time, the synchronous cross bar (3) releases the two clutch shafts (21) on the other side of the door body (2), and the clutch shafts (21) are separated from the corresponding first lock holes (12) under the action of the return spring (22).

3. The refrigerator door opening structure according to claim 2, characterized in that: The clutch hinge further comprises two synchronous connecting rods (23), which are mounted on the door body (2) in a manner that allows the synchronous connecting rods (23) to slide up and down via vertical guide rails (24); the first ends of the two synchronous connecting rods (23) are respectively connected to the corresponding clutch shafts (21), and the second ends of the two synchronous connecting rods (23) are respectively connected to the synchronous cross bar (3) in a transmission manner.

4. The refrigerator door opening structure according to claim 3, characterized in that: The second ends of the two synchronous connecting rods (23) are both provided with wedge-shaped ends (25), the synchronous cross rod (3) can move left and right on the door body (2), and both ends of the synchronous cross rod (3) are provided with tapered heads (31); when the synchronous cross rod (3) moves toward one side of the door body (2), the tapered head (31) at one end of the synchronous cross rod (3) squeezes the corresponding two wedge-shaped ends (25), thereby pushing the two synchronous connecting rods (23) on one side of the door body (2) to slide upward and downward respectively; at the same time, the tapered head (31) at the other end of the synchronous cross rod (3) is separated from the corresponding two wedge-shaped ends (25), so that the two synchronous connecting rods (23) on the other side of the door body (2) slide downward and upward respectively.

5. The refrigerator door opening structure according to claim 1, characterized in that: The door body (2) is provided with a transverse guide rail (26), and the synchronous cross bar (3) is installed on the door body (2) through the transverse guide rail (26). Two gear plates (32) are provided on the transverse guide rail (26), and the synchronous cross bar (3) is provided with a limiting plate (33). The limiting plates (33) can be respectively snap-connected to the corresponding gear plates (32).

6. The refrigerator door opening structure according to claim 5, characterized in that: Two handles (27) are provided on the door body (2), and a transmission structure is provided between the two handles (27) and the synchronous cross bar (3).

7. The refrigerator door opening structure according to claim 6, characterized in that: The transmission structure comprises a swing arm (28), a handle (27) fixedly connected to the swing arm (28), a first end of the swing arm (28) being rotatably connected to the door body (2), and the other end of the swing arm (28) being connected to the synchronous cross bar (3) via a movable head.

8. The refrigerator door opening structure according to claim 2, characterized in that: The door body (2) is provided with a set of self-locking components at the upper and lower ends, and the self-locking components include a guide sleeve (4) and a sealing baffle (41). The guide sleeve (4) is fixedly connected to the door body (2), and the clutch shaft (21) is slidably arranged in the guide sleeve (4) up and down; the sealing baffle (41) is arranged on the end of the guide sleeve (4), and the sealing baffle (41) is slidably connected to the door body (2). The door body (2) and the sealing baffle (41) are in a closed state. ) is provided with a self-locking spring (42), and a second locking hole (43) is provided on the sealing baffle (41); when the door body (2) approaches the box body (1), the hinge seat (11) can push the sealing baffle (41) so that the second locking hole (43) and the clutch shaft (21) are arranged concentrically; when the door body (2) moves away from the box body (1), the self-locking spring (42) can push the sealing baffle (41) so that the second locking hole (43) and the clutch shaft (21) are misaligned.

Images